OpenXchangeClient.Model.Contact (open_xchange_client v0.10.1)
In case the parameter 'extendedEntities' is set to 'true' and the entity is an internal user then this field contains some of the contact data of this user.
In case the parameter 'extendedEntities' is set to 'true' and the entity is an internal user then this field contains some of the contact data of this user.